Gas water-heater.



C. MUNZNER.

GAS WATER HEA "R.

APPLICATION FILED AUG.7,1911.

Patented June 17, 1913.

2 SHEETl-SHEET l.

wuzwto'a C. MUNZNER.

GAS WATER HEATER.

APPLICATION FILED AUG. 7. 1911 1,065,165, Patented June 17,1913.

'5 SHEETS-SHEET 2,

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CHARLES MUNZNER, OF CHICAGO, ILLINOIS, A SSIGNOR TO PANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF AMERICAN STOVE COM- NEW JERSEY.

GAS WATER-HEATER.

Specification of Letters Patent.

Application filed August 7, 1911.

Serial no. 642.667.

To all whom it may concern Be it known that I, CHARLES MUNZNER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and use ful Improvements in Gas Whiter-Heaters, of which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to improvements in water heaters and pertains more particularly to heaters adapted to be connected up to kitchen boilers.

The object of my invention is to provide a heater of this character in which the coil is thoroughly heated and at the same time producing a heater in which access to the coil may be readily had, and also providing means whereby the burner inay be readily removed without disturbing the gas supply pipe connection.

Another object of my invention is to provide a heater of this character in which the water is more rapidly heated and at less expense, having certain details of structure hereinafter fully set forth.

In the accompanying drawingvd igure l is a side view of-iny improved heater embodying my invention, and showing one section swung open to expose the coil and the burner. Fig. 2 is an enlarged side elevation of the. lower end of the coil partly in section. Fig. 3 is an enlarged bottom perspec' tive View of the coil. Fig. 4 is a vertical sectional view of Fig. 1, showing the burner in full lines. Fig. 5 is a vertical sectional view of the lower end of the heater, showing the gas 'connection-in its lower position, so that the burnercan be removed, Fig. 6 is a perspective view of the ottoln Of the burner.

Referring now to the drawings, 1 represents the outer casing of my improved heater, which is made in two sections, 2 and 3, hinged at 4, so that the section 4 may be swung outwardly as shown in Fig 1 of the drawings. The section 2 has rigidly secured thereto the cover or upper end 4 of the heater, thus the said section is the supported portion of the heater. The hinged section 3 allows the coil and the burner to be readily exposed for the purpose of lighting and cleaning or making any repairs which may be necessary,

. form and havin The lower end of the casing is bulged outwardly, as indicated at 5, and is provided with a series of inwardly extending lugs 6, the inner ends of which are in a line approximately with the inner wall of the upper portion of the casing. Within said. i;

bulged lower end of the casing is a sheet metal casing 7, resting against the lugs. These lugs hold the sheet metal casing away from the outer casing forming the air space 8, between the inner casing 7 and the outer jacket 5, this space acts, as insulation and reduces the radiation of the heat from the casing. The inner casing 7 is preferably bolted to the outer casing against the lugs by means of bolts 9.

Within the lower end of the outer casing is mounteda burner 10, which is of the structure shown in the drawings, and hereinatter more fully described. This burner, as shown, is below the inner casing 7 and is of the Bunsen-type, and is composed of a central chamber having the openings 23 therethrough and said chamber havin radial arms 23 communicating with the sai chamber. The upper face of said chamber Patent-ed June 1 7.1 91 3,.

and also the arms are provided with the usual gas orifice which can be any manner desired.

The lower face side of the openings '23, is provided with the downwardly extending nipple 24' having cmnmunication with the said chamber and through which the gas passes to the burner. This nipple is provided with a set screw 24 which extends through the wall thereof and engages and holds the short sect-ion 25 of the gas pipe in said nipple. The main gas supply pipe 26 is supported in any desired manner and having aturning plug 27 by means of which the supply of gas is regulated. Secured on said air mixing chamber 28 having the usual air receiving openings 29. The upperend of said gas mixing chamber is reduced, as indicated at 30, and extends into the socket 31, carried by the lower end of the short section 25. This socket is of an elon ated a set screw 32 to Melt the reduced end of t e mixing chamber therein, as shown in 1. I I

The burner as heretofore described has a series of radially arran ed arms 23, and the outer ends of several 0% these arms are pro.-

arranged in of the chamber 22, at one pipe is the vidcd with outwardly extended reduced portions 33, which extend through openings 34 in the casings, and whereby the burneris removably supported. The said reduced portions are provided with stops 35, which hold the burner centrally within the casing and prevents it from moving in any direction,

The burner, as heretofore stated, is solely supported in the casing by the portions 33, and when it is desired to remove the burner the section 3 is swung open. The setscrews 24 and 32 are withdrawn allowing the socket 5-31 to slide down upon the reduced portion of the mixing chamber bringing the upper end of the short section out of the nipple, so hat the burner may be moved horizontally from the heater without disturbing the gas supply pipe. The short section 25 is provided with the plate, 28 which is of a diameter less than thatof the lower end of the casing to form a narrow circular air-supplying space,as shown in the drawings. Vithin said casing l is a vertically disposed coil 1-i having the convolutions thereof spaced slightly apart. The lower end of the coil extends within the inner casing 7 a consid able distance toward the burner 10, so as gilt-bring the coil close to the burner. This coil is preferably made of copper and has its lower end brazed, as indicated at 15, to the chamber 17, which is preferably made of brass. This chamber 17, as shown, is of a circular fiat form andcomparatively shallow. The circumference of this receptacle or chamber is slightly less than the distance between the inner faces of the coils 14, so

that there is a slight space surrounding the chamber, as shown in Figs. 2 and 3.

The chamber 17 is provided with an out.- wardly extending pipe 18, which ektends tlirouglh an opening 19 of the casing, to which is connected the water supply pipe from the boiler or other source of supply. As heretofore. stated, the chamber 17 is dircctly below the center of the coil and directly above the burner 10.

The cold water being fed through the pipe 18 to the chamber 17 becomes thoroughly heated as the chamber 17 afiords a greater heating surface and performs the function of a battle plate and spreads the flames to cause the same to pass upwardly around and outside of the coil.

Part of the gases pass to the central chamber and, about the middle of the coil, a diaphragm 22 preferably steel is inserted to throw the hot gases through the convohr tions to the outside of the coil. The upper ends of the two sections 2 and 3 of the case 1, are provided with spiral battle plates 1%) and 20, so arranged that when the two sections of the casing are closed, the passage around the coil is practically closed and the products of combustion are caused to travel inwardiy into the coil and out through the smoke flue at the upper end of the casing. The upper end of the coil H extends upwardly through the cover t of the casing and is connected to the boiler in any desired manner and forms the water return for said boiler.

In operation the heat and products of combustion from the burner strike the chamber 17 and are deflected outwardly against the copper coil and travel upwardly through the space 21 surrounding the coil and through the center of the coil. The air or insulating space 18 prevents the heat from radiating from the lower end of the heater. The column of hot gases in the center of the coil is thrown to the outside by baflle Q2 and then all of the gases are forced through the coil to the center by battle plates 19 and 20 and they then pass through the smoke flue secured to the upper end of the casing just above the center of the coil. The casing 1 is preferably made of cast-iron and battle plates 19 and 20 are cast thereon. The casing '7 is preferably made of steel. The coil 14 is made of copper and the chamber 17 is made of cast brass which does not corrode or pit as copper usually does with btirners of this character.

The two sections 2 and are held to gether by a spring latch 36 engaging a lug 27 and said sections adapted to be opened and closed by the knob 37.

Having thus described my invention, what I claim and desire to secure by Letters Patent is: p

1. A water heater comprising a casing, a. coil vertically disposed in said casing, a chamber connected to the coil at one side below the central portion of the coil, a water supply for the chamber opposite the connection with the coil and a burner below said chamber.

2. A water heater coin 'irising a casing, a coil vertically disposed in the casing, a circular flat chamber in conm'iunication at one side with the coil below the central portion of the coil, :1 water supply for said chamber on the opposite side from the communication with the coil and a gas burner below said chamber and coil, substantially as shown and described.

A water heater comprising a casing, a

coil vertically disposed within the casing,

a chamber secured at one side to.the lower end of the coil directly below the center of the coil, a water supply connected to the chamber at the opposite side from the connection with the coil. a burner below said chamber, and the casinc having an insulating space surrounding the lower end of the coil.

4. A Water heater comprising a prising, made in two sections and hinged together, a coil supported by one section, a chamber COil.

40 chamber whereby the secured to the lower end of the coil and of a circular form arranged directly below the open center of the coil, spiral batlle plates carried by the two sections of the casing 5 and extending inwardly to the coil and a burner below the lower end of the coil and a spiral battle plate carried by the upper end of the casing and extending inwardly to the coil whereby the products of combustion are caused to travel inwardly through. the

(l. A water heater comprising an outer casing, having its lower ends bulged out wardly, an inner casing abutting the bulged portion of the outer casing and forming an insulating space surrounding the lower end of the coil having its lower end open and a burner carried by the casing below the lower end of the coil.

7. A water heater comprising av casing, a

5 coil vertically disposed within the casing, a

chamber connected to the lower end of the coil below the central passage of the coil, a spiral batlle plate carried by the upper end of the casing and extending inwardly to the coil, a burner below the chamber and said casing having an insulating space surrounding the lower end of the coil,

8. A water heater comprising a. casting. a coil vertically disposed within the casing. a

circular flat chamber connect-ed at one side to the coil below the central opening through thecoil, a water supply connected to the tlat chamber at the oppo ite sidetrotn the con nection with the coil and a burner below the said chamber forms a batlie plate to cause the flame to spread upwardly around the. coil.

9. A water heater cmnprising a casing, 'fornicd of two se tions hinged together, a

vertically disposed coil carried by one sec her secured to the lower end of the coil and through which the water passes to the coil and forming a bafile plate. substantially as shown and described.

10. A water heater con'iprtslng a casing having an outwardly flared. lower end, an

inner casing within said'fiared lower end leaving; a space between the casings at its upper end a vertically disposed coil within the casing and spaced therefrom, a. circular 6 extending inwardly to the coil, and a burner below the chamber whereby the flames from the burner engage the chamber and are deflected outwardly and travel upwardly around the coil until they engage the btrflle plates and are diverted inwardly and outwardly through a central line above the central passage of the coil.

11. A Water heater comprising a casing, a vertically disposed coil within the casing and spaced therefrom, a circula' chamber secured to the lower end of the coil and directly below the central opening of the coil, a water supply for the chamber opposite the connection with the coil. and a burner below the chamber and the coil and adapted to direct the flame upon the bottom of the chamher and the lower convolntions of the coil.

12. A water heater comprising a casing formed of two hinged sections, a coil within said casing and supported by one section, a burner below the coil and removably snpported casing and adapted to be moved hori zontally when one section is swung open. and battle plates on the outside and inside of the etmvolutions of said coil.

13. A water heater comprising a casing, a coil verti ally disposed within the casing, a chamber connected to the lower end of the coil below the central passage of the coil, spiral battle plates carried by the casing and extending inwardly to the coil, a ballie plate extending across the space formed within the coil intermediate the spiral bathe plates and a burner removably supported below the "chamber.

14. A water heater comprising a casing formed of two hinged sections, a coil centrally disposed within the casing and supported by one l'iinged sectioma chamber con nected to the lower end of the coil below thecentral passage of the coil, spiral bathe plates carried by the sections of the casing and extending inwardly to the coil, a. battle plate extending across the space formed within the coil intermediate the spiral battleplatcs, a burner supported by the two sec tions of the. casing and removable when the sections are open, and a vertically movable gas connection between the gas supply and burner.

15. A water heater comprising a casing, a coil vertically disposed within the casing, a chamber connected at one side to the lower end of the coil below the central passage of the coil, a. water supply connected to the chamber on the opposite side from the con ncction with the coil, spiral batlle plates carried by the casing and extending inwardly to the coil, a batlle plate extending across the chamber secured to the lower end of the coil space formed within the coil intermediate the spiral bafilc plate and a burner removably supported in the chamber.

16. A water heater comprising a casing, a coil vertically dis )osed within the easing, a chamber connects to the lower end of the 

